<script>
    alert(8888);
</script>
<!DOCTYPE html>
<html lang="cn">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script>
        // JS 单行注释
        /*
        JS
        多行注释
         */
        // alert(2222);  //具有阻塞性
    </script>
    <script src="./my.js"></script>
</head>
<body>
    <h1>JS</h1>
    <hr>

    <button onclick="alert('6666')">点我啊~ </button>
    
    
    <script></script>
</body>
</html>

